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US 5,438,813 AGranted
Method for insulating walls of furnace
AssigneeA. P. Green Industries, Inc.
InventorJames A. Wade
Life of this patent
Estimating the term…
Abstract
An improved ceramic fiber module for installation a high temperature furnace. The module is made from ceramic fiber mats having hot and cold faces. The module includes a tine which impales each of the mats in a plane generally parallel to the hot and cold faces. The tine receives a threaded stud through its central opening. The module is welded to the interior wall of the furnace. The tine is thereafter forced downwardly toward the wall of the furnace to pull the module against the interior wall of the furnace thereby enveloping the stud within the module and compressing the mats of the module against the interior wall.
Claims8
A method for insulating a furnace wall comprising the steps of:
- providing a ceramic fiber module having a hot face and a cold face in parallel relationship, the module comprising a plurality of ceramic fiber mats having major surfaces perpendicular to the hot and cold faces, an elongate tine having a generally central opening therein, the tine impaling each of the mats in a plane generally parallel to the hot and cold faces, and a stud having first and second opposite ends, said first end protruding through and projecting outwardly from the cold face of the module, the tine receiving the stud through its central opening;
- placing a fastener on the stud with the tine being located between the fastener and the first end of the stud, the fastener being engageable with the tine and being adapted for holding itself on the stud in a selected location along the length of the stud;
- positioning the module with its cold face generally adjacent the interior wall of the furnace;
- attaching as by welding the first end of the stud to the interior wall;
- capturing the fastener with a fastening tool made of a yieldable material for movement of the fastener conjointly with the fastening tool;
- and
- compressing the mats against the interior wall of the furnace with a predetermined compression force by moving the fastener with the fastening tool toward the first end of the stud against the tine such that the tine is driven toward the first end of the stud, the tine pushing the module against the interior wall of the furnace as the fastener is moved thereby enveloping the protruding part of said first end of the stud within the module and compressing the mats of the module against the interior wall with the mats supplying an increasing reaction force resisting further movement of the tine and fastener toward the first end of the stud, the tine being driven toward said first end of the stud by the fastening tool until the reaction force is sufficiently large to cause the fastening tool material to yield and the fastening tool to release the fastener.
4 more elements
A method for insulating a furnace wall comprising the steps of:
- providing a ceramic fiber module having a hot face and a cold face in parallel relationship, the module comprising a plurality of ceramic fiber mats having major surfaces perpendicular to the hot and cold faces, an elongate tine having a generally central opening therein, the tine impaling each of the mats in a plane generally parallel to the hot and cold faces, and a stud having first and second opposite ends, said first end protruding through and projecting outwardly from the cold face of the module, the tine receiving the stud through its central opening;
- placing a fastener on the stud with the tine being located between the fastener and the first end of the stud, the fastener being engageable with the tine and being adapted for holding itself on the stud in a selected location along the length of the stud;
- positioning the module with its cold face generally adjacent the interior wall of the furnace;
- capturing the fastener with a fastening tool made of a yieldable material for movement of the fastener conjointly with the fastening tool;
- attaching the first end of the stud to the interior wall by arc welding through the fastening tool in engagement with the fastener;
- compressing the mats against the interior wall of the furnace with a predetermined compression force by moving the fastener with the fastening tool toward the first end of the stud against the tine such that the tine is driven toward the first end of the stud, the tine pushing the module against the interior wall of the furnace as the fastener is moved thereby enveloping the protruding part of said first end of the stud within the module and compressing the mats of the module against the interior wall with the mats supplying an increasing reaction force resisting further movement of the tine and fastener toward the first end of the stud, the tine being driven toward said first end of the stud by the fastening tool until the reaction force is sufficiently large to cause the fastening tool material to yield and the fastening tool to release the fastener.
3 more elements
Dependencies are inferred from the claim text.